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Would you recommend the product? Yes |
Total Spent: $500.00| Rating: 10

Pros:

solid construction, no CA, very good IQ with 70-200f4IS

Cons:

expensive

With 70-200f4IS it works wonderful.

cpe1991

Registered: December 2011Posts: 5

Canon 1.4X Extender EF III review by cpe1991

Review Date: 12/28/2011

Would you recommend the product? Yes |
Total Spent: $500.00| Rating: 10

Pros:

No loss of IQ, no added CA to 70-200mm f/4 IS L

Cons:

expensive, not massive increase in focal length

Works beautifully with the 70-200mm f/4 IS, which is a very sharp lens to start with. I use it routinely for bird watching, using it with the 7D as a telescope to give about 5x magnification, and then blowing up on the screen for study in the hide, adding an extra 40% in linear size and 100% in area. A definite increase in resolution on later printing. The combination of extender and 200mm on the 7D is equivalent to a lightweight f/5.6 448mm 4-stop IS lens on a 5D for field of view.